Metal tube rotameter FR series using non-contact detection of changes in the magnetic field angle sensor of magnetic measurements, and with a high performance MCU, LCD indication can be achieved, cumulative, remote output (4 ~ 20mA), pulse output, alarm output, and upper and lower limits function, this type of intelligent signal transmitter with high accuracy and reliability and is entirely the same type of instrument can replace imports, and has a cost-effective, on-line parameter calibration, power failure protection features. 
 XFR series of metal tube rotameter design also takes into account the user process flow requirements, XFR-A the next entry on the out, XFR-B out of the next entry on the horizontal mounted, XFR-C levels mount, XFR-D other installation form (screw connection type and other installation optional). 
 The correct selection of intelligent metal tube rotameter and the additional structure, stable operation of the system and the measurement accuracy is essential. Selection and installation of the meter should pay particular attention to the following: 
 1) Remote Output for intelligent selection of metal tube rotameter, to select the appropriate type of protection required to use the meter location; installation should also pay attention to the meter housing electrical fastening and connection after sealing the mouth to explosion-proof, protective, anti-corrosion requirements. 
 2) For the measured medium temperature (> 220 ℃) ??or low places, usually part of the flow meter sensor to heat or insulation measures to ensure the signal converter --- working temperature indicator should be chosen high-temperature indicator (... / G / ...). (See high-temperature structure Figure 1) 
 3) For some the need to take the test insulation or cooling medium, to select the jacketed flow (... / T / ...). Standard XFR Intelligent metal tube rotameter for heating or cooling interface with DIN2501 DN15 PN1.6 flange, flanged or threaded connections for other, please specify when ordering. 
 4) For the flowmeter inlet pressure of the media instability, especially for gas measurement, in order to ensure the accuracy and service life should be used in damping structure (... / Z / ...). 
 5) The requirements for the medium pressure level higher than standard pressure level, in the selection, please select the high-pressure structure (... / G / ...), see the high-pressure structure of Figure 3. High-pressure type with HG20595-97 RF welded steel pipe flange with neck. Such as the use of other standards, please specify when ordering. 
 6) The flow meter installation to ensure the vertical measuring tube is better than 5%, and the bypass should be installed for easy maintenance and cleaning without affecting production. 
 7) the location of flow meter installation shall ensure that the entrance of ≥ 5DN of straight pipe, exports do not ≤ 250mm straight pipe; such as media containing ferromagnetic material, the flow meter should be installed before the magnetic filter. (See the magnetic filter and straight pipe dimensional drawings) 
 8) control system in the control valve should be installed downstream of the flowmeter. For gas measurement, should ensure that the working pressure of not less than five times the flow pressure loss, so that flow stability. 
 9) before the installation of flow meters should be clean and purge pipeline welding slag; installation to remove the meter in the stop element; after installation, to slowly open the control valve, to avoid impact damage to the meter. 
 10) For the standard XFR, XFR-C-type horizontal metal tube rotameter intelligent choice built-in magnetic filter. Built-in magnetic filters XFR standard total height 350mm.